Q145 / 180 · AIIMS 2003 · Physics

Assertion : Owls can move freely during night. Reason : They have large number of rods on their retina.

  • A
    if both assertion and reason are true and the reason is the correct explanation of the assertion
  • B
    if both assertion and reason are true and the reason is not the correct explanation of the assertion
  • Correct answer
    C
    if assertion is true but reason is false
  • D
    if both assertion and reason are false statements.

Solution

There are two types of receptors in the eyes. One is called rods and other is cons. The rods are sensitive for dark light. As the owl has large number of cones in its retina and so the owl can move freely in the dark.

Hence, the correct answer is option: 'C'.

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